1 ps2100a 02/10/97 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 pi74lcx373 fast cmos 3.3v 8-bit transparent latch product features ? functionally compatible with fct3, lvt, and 74 series 373 families of products ? tri-state outputs ? 5v tolerant inputs and outputs ? 2.0v-3.6v v cc supply operation ? balanced sink and source output drives (24 ma) ? low ground bounce outputs ? supports live insertion ? esd protection exceeds 2000v, human body model 200v, machine model ? packages available: ? 20-pin 209-mil wide plastic ssop (h) ? 20-pin 173-mil wide plastic tssop (l) ? 20-pin 150-mil wide plastic qsop (q) ? 20-pin 300-mil wide plastic soic (s) product description pericom semiconductor?s pi74lcx series of logic circuits are pro- duced using the company?s advanced 0.6 micron cmos technology, achieving industry leading speed grades. the pi74lcx373 is an 8-bit transparent latch designed with 3-state outputs and is intended for bus oriented applications. when latch enable (le) is high, the flip-flops appear transparent to the data. the data that meets the set-up time when le is low is latched. when oe is high, the bus output is in the high impedance state. the pi74lcx373 can be driven from either 3.3v or 5.0v devices allowing this device to be used as a translator in a mixed 3.3/5.0v system. logic block diagram product pin configuration product pin description truth table (1) note: 1. h = high voltage level, x = don?t care, l = low voltage level, z = high impedance s t u p n is t u p t u o d n e le oo n hh l h lhl l xxh z xl lo 0 e m a n n i pn o i t p i r c s e d oe ) w o l e v i t c a ( t u p n i e l b a n e t u p t u o e l) h g i h e v i t c a ( t u p n i e l b a n e h c t a l 7 d - 0 ds t u p n i a t a d 7 o - 0 os t u p t u o e t a t s - 3 d n gd n u o r g v cc r e w o p 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 20-pin h, l, q, s oe le o0 g d d0 to 7 other channels o
pi74lcx373 3.3v 8-bit transparent latch 2 ps2100a 02/10/97 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 maximum ratings (above which the useful life may be impaired. for user guidelines, not tested.) note: stresses greater than those listed under maximum ratings may cause permanent damage to the de- vice. this is a stress rating only and functional opera- tion of the device at these or any other conditions above those indicated in the operational sections of t his specification is not implied. expo sure to absolute maximum rating conditions for extended periods may affect reliability. recommended operating conditions l o b m y sr e t e m a r a p. n i m. x a ms t i n u v cc e g a t l o v y l p p u sg n i t a r e p o0 . 26 . 3 v n o i t n e t e r a t a d5 . 16 . 3 v i e g a t l o v t u p n i05 . 5 v o e g a t l o v t u p t u oe t a t s w o l r o h g i h0v cc e t a t s - i r t05 . 5 i oh i / ol t n e r r u c t u p t u ov cc v 6 . 3 - v 0 . 3 = ? 4 2 a m v cc v 7 . 2 = ? 2 1 t a e r u t a r e p m e t g n i t a r e p o r i a - e e r f - 0 4 5 8 + c d / t d v e t a r e g d e t u p n iv , v 0 . 2 - v 8 . 0 = v cc v 0 . 3 =00 1v / s n storage temperature ............................................................. ?65c to +150c ambient temperature with power applied ............................ ?40c to +85c supply voltage to ground potential (inputs & vcc only) ...... ?0.5v to +7.0v supply voltage to ground potential (outputs & d/o only) .. ?0.5v to +7.0v dc input voltage .................................................................... ?0.5v to +7.0v dc output current .............................................................................. 120 ma power dissipation .................................................................................... 1.0w
pi74lcx373 3.3v 8-bit transparent latch 3 ps2100a 02/10/97 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 notes: 1. for max. or min. conditions, use appropriate value specified under electrical characteristics for the applicable device type. 2. typical values are at v cc = 3.3v, +25c ambient. 3. per ttl driven input; all other inputs at vcc or gnd. s r e t e m a r a pn o i t p i r c s e ds n o i t i d n o c t s e t ) 1 ( . n i mp y t ) 2 ( . x a ms t i n u v ih e g a t l o v h g i h t u p n il e v e l h g i h c i g o l d e e t n a r a u g0 . 2 v v il e g a t l o v w o l t u p n il e v e l w o l c i g o l d e e t n a r a u g8 . 0 v oh e g a t l o v h g i h t u p t u ov cc 6 . 3 - 7 . 2 =i oh a m 1 . 0 C =v cc 2 . 0 - v cc 7 . 2 =i oh a m 2 1 C =2 . 2 v cc 0 . 3 =i oh a m 8 1 C =4 . 2 i oh a m 4 2 C =2 . 2 v ol e g a t l o v w o l t u p t u ov cc 6 . 3 - 7 . 2 =i ol a m 1 . 0 =2 . 0 v cc 7 . 2 =i ol a m 2 1 =4 . 0 v cc 0 . 3 =i ol a m 6 1 =4 . 0 i ol a m 4 2 =5 5 . 0 v ik e g a t l o v e d o i d p m a l cv cc , . n i m =i in a m 8 1 C = - 7 . 0 - 2 . 1 i i t n e r r u c e g a k a e l t u p n i0 v i v 5 . 56 . 3 - 7 . 2 = c c v5 a i oz e g a k a e l t u p t u o e t a t s - i r t0 v o v 5 . 5 v i v = ih v r o il v cc 6 . 3 - 7 . 2 =5 i off e l b a s i d n w o d r e w o pv cc , v 0 =v in v r o out v 5 . 50 1 i cc y l p p u s r e w o p t n e c s e i u q t n e r r u c v cc . x a m =v in v r o d n g = cc ? 1 . 00 1 d i cc y l p p u s r e w o p t n e c s e i u q t n e r r u c h g i h s t u p n i l t t v cc . x a m =v in v = cc v 6 . 0 C ) 3 ( ?? 0 0 5 s r e t e m a r a pn o i t p i r c s e ds n o i t i d n o c t s e t. p y ts t i n u c in e c n a t i c a p a c t u p n iv cc v , n e p o = i v r o v 0 = cc 7 f p c out e c n a t i c a p a c t u p t u ov cc v , v 3 . 3 = i v r o v 0 = cc 8 c pd e c n a t i c a p a c n o i t a p i s s i d r e w o pv cc v , v 3 . 3 = i v r o v 0 = cc ,z h m 0 1 = f5 2 capacitance dc electrical characteristics (over the operating range, t a = - 40c to +85c, v cc = 2.7v to 3.6v)
pi74lcx373 3.3v 8-bit transparent latch 4 ps2100a 02/10/97 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 switching characteristics over operating range note: 1. skew between any two outputs, of the same package, switching in the same direction. dynamic switching characteristics (t a = +25c) note: 1. measured with n?1 outputs switching from high-to-low or low-to-high. the remaining output is measured in the low state. s r e t e m a r a pn o i t p i r c s e ds n o i t i d n o c t s e t ) 1 ( . p y ts t i n u v olp e g a t l o v k a e p w o l c i m a n y dv cc c , v 3 . 3 = l f p 0 5 = v ih v , v 3 . 3 = il v 0 = 8 . 0v v olv e g a t l o v y e l l a v w o l c i m a n y dv cc c , v 3 . 3 = l f p 0 5 = v ih v , v 3 . 3 = il v 0 = pericom semiconductor corporation 2380 bering drive ? san jose, ca 95131 ? 1-800-435-2336 ? fax (408) 435-1100 ? http://www.pericom.com s r e t e m a r a pn o i t p i r c s e ds n o i t i d n o c v cc v 3 . 0 v 3 . 3 =v cc v 7 . 2 = s t i n u . n i m. x a m. n i m. x a m t plh t phl y a l e d n o i t a g a p o r p d x o o t x c l f p 0 5 = r l 0 0 5 = w 5 . 10 . 85 . 10 . 9 s n t plh t phl y a l e d n o i t a g a p o r p o o t e l x 5 . 15 . 85 . 15 . 9 t pzh t pzl e m i t e l b a n e t u p t u o x o o t e o 5 . 15 . 85 . 15 . 9 t phz t plz e m i t e l b a s i d t u p t u o x o o t e o 5 . 15 . 75 . 15 . 8 t su h g i h e m i t p u t e s e l o t x d , w o l r o 5 . 2 ? 5 . 2 ? t h h g i h e m i t d l o h e l o t x d , w o l r o 5 . 1 ? 5 . 1 ? t w h g i h h t d i w e s l u p e l3 . 3 ? 3 . 3 ? t sk ( o )w e k s t u p t u o ) 1 ( ? 0 . 1 ??
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